I think after the initial moral panic and once the novelty wears off, this issue will fade into obscurity. And currently existing laws should cover sharing such imagery/videos anyway.
Meta-point is that different people get off on different things, so using seemingly objective language ("the whole point of A is B") to describe something extremely subjective is imo counterproductive.
Other people don't care because their goal is not to get aroused but to embarrass the persons whose real faces have been faked onto the AI-generated or AI-edited porno footage.
Some people say 'logically we all know it is fake so just ignore it'. This demonstrates something of a lack of imagination, an inability to picture oneself or a beloved family member being put in that position. It also overlooks that different societies have different social standards and that social mobs tend toward the lowest common IQ denominator.
South Korea is a very conservative society, whether you agree with this conservatism or not. Being in a deepfake is easily enough to ruin a person's social or professional reputation, and schoolchildren are especially vulnerable to such pressures. It's not so different from the US problem with sextortion, where teens are tricked into sending nudes to an apparent romantic prospect, and then blackmailed. In both countries, such abuse can end in suicide.
In even more conservative countries like Islamic societies, the victims of such fakes could conceivably suffer criminal penalties if authorities don't believe (or deliberately subvert) their protestations of innocence.
This is the problem with Korea, not deepfakes. That they have US-adjacent employment laws, and will fire people based on arbitrary anonymous bile. This shouldn't happen even when the photos are real. The idea that women who have been naked shouldn't work is repulsive.